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What are solar collectors?

What are solar collectors?

Solar collectors are technical devices that absorb solar radiation by converting it into heat, which is transferred to a solar boiler or through heat exchangers in a swimming pool, underfloor heating or other heat accumulators.

The principle of construction for a solar collector is relatively simple - it consists of a housing, an absorbent surface, a thermal insulation layer, impact-resistant solar glass. Copper pipes are placed in the housing below the absorbent surface, through which the heat carrier flows, which for safety reasons must not be antifreeze or other toxic liquid.

How much do solar collectors cost?

How much do solar collectors cost?

Qualitative, 2 m2 large solar collectors according to the Latvian climate cost not less than 800 EUR / unit.

Since 2007, we, sauleskolektors.lv, have tried several types and manufacturers of collectors, and we have realized that the most suitable solar collectors for our climate are manufactured in the German / Slovak joint venture Thermo | Solar. They also have the best value for money. By installing these collectors, we have accumulated invaluable experience gained during more than 35 years of operation, scientific research and implementation of very diverse and complex projects.

When will solar panels pay off?

When will solar panels pay off?

The payback time for solar collectors depends on several factors, including:

Installation costs of the solar collector system: The payback time for solar collectors begins from the moment the system is ready and operational.

Energy prices: If energy prices are high, solar collectors will pay back more quickly because you’ll reduce expenses for water heating and heating.

Efficiency of the solar collector system: High-quality solar collectors are more effective and pay back faster.

Why don't we recommend vacuum tubes?

Why don't we recommend vacuum tubes?

Solar collectors can be purchased, which consist of vacuum tubes made of thin (1.4mm - 2mm) borosilicate glass. Almost all vacuum tube plants are located in China, where this type of solar collectors are the most common. However, the impact resistance of such vacuum tube solar collectors is insufficient for the Latvian climate, where there are regular storms.

They break tree branches and lift various objects into the air, which can damage them when they hit the vacuum tubes. Hail grains in Latvia also tend to reach dangerous sizes for vacuum tubes.

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